【简答题】Case file study（You can answer the questio...【简答题】Case file study（You can answer the question either in Chinese or English) A 68-year-old female in a hypertensive crisis is being treated in the intensive care unit (ICU) with intravenous nitroprusside for 48 hours. The patient’s blood pressure was brought back down to normal levels; however, she was complaining of a burning sensation in her throat and mouth followed by nausea and vomiting, diaphoresis, agitation, and dyspnea. The nurse noticed a sweet almond smell in her breath. An arterial blood gas revealed a significant metabolic acidosis. A serum test suggests a metabolite of nitroprusside, thiocyanate, is at toxic levels. 1.What is the likely cause of her symptoms？ 2.What is the biochemical mechanism of this problem？ 3.What is the treatment for this condition？